Ammunition and explosives – Igniting devices and systems – Percussion primers or ignitors
Reexamination Certificate
2002-07-17
2009-06-16
Bergin, James S (Department: 3641)
Ammunition and explosives
Igniting devices and systems
Percussion primers or ignitors
C102S470000, C102S439000
Reexamination Certificate
active
07546805
ABSTRACT:
A detonator includes a pyrotechnic material and a first explosive. The pyrotechnic material ignites in response to a percussive impact, and the explosive detonates in response to the ignition of the pyrotechnic material. The detonator may include a plate, and the plate forms a projectile in response to energy released by the ignition of the pyrotechnic material to detonate an additional explosive. A passageway of the detonator may be located between these explosives, and the passageway may include a cross-sectional profile that substantially varies along a path between the explosives.
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Voreck Wallace E.
Yang Wenbo
Bergin James S
Kurka James L.
McGoff Kevin B.
Schlumberger Technology Corporation
Trop Pruner & Hu P.C.
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